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Issue 23, 2018
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Bioconcentration of organic dyes via fungal hyphae and their derived carbon fibers for supercapacitors

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Abstract

Heteroatom doping can change the electrochemical properties of carbon materials, but the simple, cheap and environmentally friendly preparation of these materials still remains a challenge. Herein, we have reported a new general strategy to fabricate heteroatom-doped carbon fiber materials based on the bioconcentration of different toxic organic dyes via fungal hyphae. The doped carbon fibers had a high content of heteroatoms and a three-dimensional network structure, exhibiting great potential as electrode materials for supercapacitors. Among these products, the N–S doped carbon fiber prepared by bioconcentration of methylene blue had the highest specific capacitance of 235 F g−1 at 1 A g−1 and good rate capability (72.8% retention from 1 A g−1 to 20 A g−1). This strategy can turn toxic waste into valuable materials, converting trash to treasure in the most literal sense; this bioconcentration method is green, general, low-cost and suitable for the preparation of fungal hyphae heteroatom-doped carbon fiber materials from different heteroatom precursors.

Graphical abstract: Bioconcentration of organic dyes via fungal hyphae and their derived carbon fibers for supercapacitors

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Publication details

The article was received on 22 Mar 2018, accepted on 03 May 2018 and first published on 04 May 2018


Article type: Paper
DOI: 10.1039/C8TA02655F
Citation: J. Mater. Chem. A, 2018,6, 10710-10717
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    Bioconcentration of organic dyes via fungal hyphae and their derived carbon fibers for supercapacitors

    J. Lei, Q. Guo, W. Yao, T. Duan, P. Chen and W. Zhu, J. Mater. Chem. A, 2018, 6, 10710
    DOI: 10.1039/C8TA02655F

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